Manambala mano mano

Only pa koyamba ngati mano anthu pa wina ndi mzake. Ndipotu aliyense wa mano ali ndi kasinthidwe munthu, amene chinapangidwa pa zaka masauzande ambiri, ndi zomwe Choncho limafanana ndi kuphedwa kwa ntchito zina. Limafotokoza dongosolo losiyana mano anthu Cholinga chawo: ena mano ife kuluma kuchokera chakudya (incisors ndi canines), ena ife amaukonda (kutafuna mano). Ndipo mano amakhala kudwala, ndi pamene ife tikubwera kwa mano, ndiye yaitali ndi zosokoneza kufotokoza zimene dzino amafuna chithandizo, dokotala wamano watola "odwala" pogogoda galasi mano onse mu mzere: yomwe dzino wodwala anapereka kulira, ndiponso ufulu.

Komabe, dokotala wa mano angathe kuchepetsa mavuto a makamaka wotchula dzino kupweteka. Ndipotu, ndithudi inu munamvapo wina mano ena zimatchedwa "zisanu ndi chimodzi", "eyiti", etc. mano ena angapo anatengera mankhwala mano. kuwerengetsa awo akuthamanga kuchokera pakati pa mzere dzino lamanzere ndi lamanja. Mwachitsanzo, anthu osema miyala amatchedwa yoyamba ndi yachiwiri kutsogolo, kapena mano kutsogolo ili nsagwada onse. mawonekedwe awo ndi mosabisa, chisel, kulola kuluma kwa papepala lalikulu la tating'ono ting'ono chakudya mosavuta. Kwa cholinga chomwecho ndipo phirilo zooneka mano - ndi "troika". Ndi thandizo lawo, mukhoza Vulani ndipo ngakhale kuluma kutali zidutswa kwambiri wandiweyani.

Ntchito mano otsala - kutafuna chakudya, mwachitsanzo akupera kuti boma yabwino kwa m'mimba ndondomeko yachibadwa. Pamene aliyense dzino ali ndi ntchito yeniyeni, ndipo masamu pa mbali yawo katundu, kotero mukamafinya katundu iye anali kuchita, anatenga mano otsala. Zimenezi zingachititse kuti mapindikidwe awo. Popewa izi, muyenera posachedwapa m'malo yotengedwa dzino prosthesis.

Koma ku nkhani. Manambala mano chimaposa anthu motere: "anai" ndi "zisanu" amanena za mano yaing'ono kutafuna kapena premolars. Large kutafuna mano, kapena molars - ndi "zisanu ndi chimodzi", "Zisanu ndi ziwiri" ndi "eyiti". mano chimodzi ndi mtundu wa mabasi pa nsagwada kutseka kupumula ndi mnzake. Padziko zapambuyo mano si yosalala, pa iwo pali tokhala, protrusions. Mu premolars wa timabamputimabampu awiri, pamene molars - 4-5. Pamaso pa protrusions amenewa amathandiza kudzapeza mphamvu ya kutafuna chakudya.

Komabe, analipo mano mano kumafuna komanso magawano mu zigawo za dentition lapansi. Onse anai a iwo, kotero musadabwe ngati inu modzidzimutsa kuti muli ndi dzino lowawa si chimodzi ndi makumi asanu ndi limodzi, ngakhale kuti, theoretically, ali 32. Monga tanena manambala mano kunayamba pakati , diverging mu madera osiyana. Aliyense wa mbali awa ndi gawo ndi pamwamba pomwe - ndi "khumi", kumanzere chapamwamba - ndi "makumi awiri" wamanzere - "makumi atatu" ndipo m'munsi bwino - "sorokovke". Choncho, mwachitsanzo, woyamba ndi wachiwiri chapamwamba mano bwino kwenikweni, ndi 11 mamita ndi 12 m, ndi chachisanu ndi chimodzi wamanzere - 35 ndi 36.

Anthu amene ali ndi "vuto" nzeru mano, mwina mukudziwa kuti ndi "Gulu la Eyiti", koma manambala wamba mano chikusonyeza kuti chiwerengero chawo chenicheni amalandira malinga ndi ndondomeko imene gawo izo utakula. M'mawu ena, nzeru mano awerengedwa 18, 28, 38 ndi 48. A "ziwiri", "atatu", etc., amatchedwa mano, m'malo kwa mayiko. Titero, "maina diminutive".

Ndipo pano pa mano a ana angapo steeper kwambiri kuposa akuluakulu. chakuti mizu ya mano deciduous anapereka amatangaza, kuzipatsa kuphimba nyongolosi ya mano tsogolo okhazikika. Ngati x-ray, zoyambira izi akalipo. Ngati mano okhazikika awerengedwa kwa "ambiri" ndi "sorokovok 'mkaka ankaona kuti motere: pamwamba kumanja - ndi" makumi asanu, "chapamwamba kumanzere -" shestidesyatki ", m'munsi kumanzere -" semidesyatki "m'munsi bwino -" vosmidesyatki ". Nkofunika kukumbukira kuti ngati mwana watikhumudwitsa mkaka mano, iwo ayenera ndithudi kuchitiridwa, ngakhale kuti iwo ali ndiyeno komabe akugwa, chifukwa chirichonse chomwe chimachitika ndi mano woyamba ndi mphamvu kwambiri pa pofuna kukwaniritsa okhazikika.